Get email notification for articles from Omer Benjakob Follow May. 5, 2021 8:37 PM A long-term sophisticated group of cybercriminals popularly known as ‘Cuba Ransomware’ is likely Russian, say Israeli researchers. An investigation by Israeli cybersecurity firms Profero and Security Joes into attacks by Cuba, which mounts “ransom” attacks against commercial clients, found a number of telltale signs about the hackers’ origin. In a report published on Wednesday, the firms show that a typo made by the hackers in correspondence with their victims is likely the result of misspelling the Russian word for server. Open gallery view A custom-made error message in Russian found on a website set up by the Cuba hackers to post data it stole from its victims Credit: Profero, Security Joes